LLVMJIT: Adapt to API changes in gdb and perf support.

During the work of upstreaming my previous patches for gdb and perf
support the API changed. Adapt.  Normally this wouldn't necessarily be
something to backpatch, but the previous API wasn't upstream, and at
least the gdb support is quite useful for debugging.

Author: Andres Freund
Backpatch: 11, where LLVM based JIT support was added.

config/llvm.m4

@@ -94,8 +94,9 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
   # Check which functionality is present
   SAVE_CPPFLAGS="$CPPFLAGS"
   CPPFLAGS="$CPPFLAGS $LLVM_CPPFLAGS"
-  AC_CHECK_DECLS([LLVMOrcGetSymbolAddressIn, LLVMOrcRegisterGDB, LLVMOrcRegisterPerf], [], [], [[#include <llvm-c/OrcBindings.h>]])
+  AC_CHECK_DECLS([LLVMOrcGetSymbolAddressIn], [], [], [[#include <llvm-c/OrcBindings.h>]])
   AC_CHECK_DECLS([LLVMGetHostCPUName], [], [], [[#include <llvm-c/TargetMachine.h>]])
+  AC_CHECK_DECLS([LLVMCreateGDBRegistrationListener, LLVMCreatePerfJITEventListener], [], [], [[#include <llvm-c/ExecutionEngine.h>]])
   CPPFLAGS="$SAVE_CPPFLAGS"
 
   # LLVM_CONFIG, CLANG are already output via AC_ARG_VAR

configure

@@ -5008,39 +5008,40 @@ fi
 cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN $ac_have_decl
 _ACEOF
-ac_fn_c_check_decl "$LINENO" "LLVMOrcRegisterGDB" "ac_cv_have_decl_LLVMOrcRegisterGDB" "#include <llvm-c/OrcBindings.h>
+
+  ac_fn_c_check_decl "$LINENO" "LLVMGetHostCPUName" "ac_cv_have_decl_LLVMGetHostCPUName" "#include <llvm-c/TargetMachine.h>
 "
-if test "x$ac_cv_have_decl_LLVMOrcRegisterGDB" = xyes; then :
+if test "x$ac_cv_have_decl_LLVMGetHostCPUName" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_LLVMORCREGISTERGDB $ac_have_decl
+#define HAVE_DECL_LLVMGETHOSTCPUNAME $ac_have_decl
 _ACEOF
-ac_fn_c_check_decl "$LINENO" "LLVMOrcRegisterPerf" "ac_cv_have_decl_LLVMOrcRegisterPerf" "#include <llvm-c/OrcBindings.h>
+
+  ac_fn_c_check_decl "$LINENO" "LLVMCreateGDBRegistrationListener" "ac_cv_have_decl_LLVMCreateGDBRegistrationListener" "#include <llvm-c/ExecutionEngine.h>
 "
-if test "x$ac_cv_have_decl_LLVMOrcRegisterPerf" = xyes; then :
+if test "x$ac_cv_have_decl_LLVMCreateGDBRegistrationListener" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_LLVMORCREGISTERPERF $ac_have_decl
+#define HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER $ac_have_decl
 _ACEOF
-
-  ac_fn_c_check_decl "$LINENO" "LLVMGetHostCPUName" "ac_cv_have_decl_LLVMGetHostCPUName" "#include <llvm-c/TargetMachine.h>
+ac_fn_c_check_decl "$LINENO" "LLVMCreatePerfJITEventListener" "ac_cv_have_decl_LLVMCreatePerfJITEventListener" "#include <llvm-c/ExecutionEngine.h>
 "
-if test "x$ac_cv_have_decl_LLVMGetHostCPUName" = xyes; then :
+if test "x$ac_cv_have_decl_LLVMCreatePerfJITEventListener" = xyes; then :
   ac_have_decl=1
 else
   ac_have_decl=0
 fi
 
 cat >>confdefs.h <<_ACEOF
-#define HAVE_DECL_LLVMGETHOSTCPUNAME $ac_have_decl
+#define HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER $ac_have_decl
 _ACEOF
 
   CPPFLAGS="$SAVE_CPPFLAGS"

src/backend/jit/llvm/llvmjit.c

@@ -28,6 +28,7 @@
 #include <llvm-c/BitReader.h>
 #include <llvm-c/BitWriter.h>
 #include <llvm-c/Core.h>
+#include <llvm-c/ExecutionEngine.h>
 #include <llvm-c/OrcBindings.h>
 #include <llvm-c/Support.h>
 #include <llvm-c/Target.h>
@@ -666,18 +667,22 @@ llvm_session_initialize(void)
 	llvm_opt0_orc = LLVMOrcCreateInstance(llvm_opt0_targetmachine);
 	llvm_opt3_orc = LLVMOrcCreateInstance(llvm_opt3_targetmachine);
 
-#if defined(HAVE_DECL_LLVMORCREGISTERGDB) && HAVE_DECL_LLVMORCREGISTERGDB
+#if defined(HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER) && HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER
 	if (jit_debugging_support)
 	{
-		LLVMOrcRegisterGDB(llvm_opt0_orc);
-		LLVMOrcRegisterGDB(llvm_opt3_orc);
+		LLVMJITEventListenerRef l = LLVMCreateGDBRegistrationListener();
+
+		LLVMOrcRegisterJITEventListener(llvm_opt0_orc, l);
+		LLVMOrcRegisterJITEventListener(llvm_opt3_orc, l);
 	}
 #endif
-#if defined(HAVE_DECL_LLVMORCREGISTERPERF) && HAVE_DECL_LLVMORCREGISTERPERF
+#if defined(HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER) && HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER
 	if (jit_profiling_support)
 	{
-		LLVMOrcRegisterPerf(llvm_opt0_orc);
-		LLVMOrcRegisterPerf(llvm_opt3_orc);
+		LLVMJITEventListenerRef l = LLVMCreatePerfJITEventListener();
+
+		LLVMOrcRegisterJITEventListener(llvm_opt0_orc, l);
+		LLVMOrcRegisterJITEventListener(llvm_opt3_orc, l);
 	}
 #endif
 

src/include/pg_config.h.in

@@ -134,6 +134,14 @@
    don't. */
 #undef HAVE_DECL_F_FULLFSYNC
 
+/* Define to 1 if you have the declaration of
+   `LLVMCreateGDBRegistrationListener', and to 0 if you don't. */
+#undef HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER
+
+/* Define to 1 if you have the declaration of
+   `LLVMCreatePerfJITEventListener', and to 0 if you don't. */
+#undef HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER
+
 /* Define to 1 if you have the declaration of `LLVMGetHostCPUName', and to 0
    if you don't. */
 #undef HAVE_DECL_LLVMGETHOSTCPUNAME
@@ -142,14 +150,6 @@
    to 0 if you don't. */
 #undef HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN
 
-/* Define to 1 if you have the declaration of `LLVMOrcRegisterGDB', and to 0
-   if you don't. */
-#undef HAVE_DECL_LLVMORCREGISTERGDB
-
-/* Define to 1 if you have the declaration of `LLVMOrcRegisterPerf', and to 0
-   if you don't. */
-#undef HAVE_DECL_LLVMORCREGISTERPERF
-
 /* Define to 1 if you have the declaration of `posix_fadvise', and to 0 if you
    don't. */
 #undef HAVE_DECL_POSIX_FADVISE

src/include/pg_config.h.win32

@@ -107,6 +107,14 @@
    don't. */
 #define HAVE_DECL_F_FULLFSYNC 0
 
+/* Define to 1 if you have the declaration of
+   `LLVMCreateGDBRegistrationListener', and to 0 if you don't. */
+#undef HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER
+
+/* Define to 1 if you have the declaration of
+   `LLVMCreatePerfJITEventListener', and to 0 if you don't. */
+#undef HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER
+
 /* Define to 1 if you have the declaration of `LLVMGetHostCPUName', and to 0
    if you don't. */
 #define HAVE_DECL_LLVMGETHOSTCPUNAME 0
@@ -115,14 +123,6 @@
    to 0 if you don't. */
 #define HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN 0
 
-/* Define to 1 if you have the declaration of `LLVMOrcRegisterGDB', and to 0
-   if you don't. */
-#define HAVE_DECL_LLVMORCREGISTERGDB 0
-
-/* Define to 1 if you have the declaration of `LLVMOrcRegisterPerf', and to 0
-   if you don't. */
-#define HAVE_DECL_LLVMORCREGISTERPERF 0
-
 /* Define to 1 if you have the declaration of `snprintf', and to 0 if you
    don't. */
 #define HAVE_DECL_SNPRINTF 1